Fun new DIY kit: Adafruit's "Drawdio" musical pencil

Our friends at Adafruit have released a fun new kit called the "Drawdio" — adapted from the original Drawdio design by Jay Silver – which lets you create a pencil that makes noisy almost-music via the variations in the resistance of graphite pencil lead. It's $20 plus shipping. I just ordered one so I can recreate my middle school notebook sketches to literally hear the music of the anime spheres.
Drawdio product page [LadyAda.net]